Quarter	US dollars
2004-12-31	71
2005-03-31	95
2005-06-30	95
2005-09-30	73
2005-12-31	86
2006-03-31	88
2006-06-30	80
2006-09-30	92
2006-12-31	88
2007-03-31	84
2007-06-30	82
2007-09-30	84
2007-12-31	76
2008-03-31	70
2008-06-30	64
2008-09-30	45
2008-12-31	58
2009-03-31	16
2009-06-30	18
2009-09-30	14
2009-12-31	15
2010-03-31	14
2010-06-30	60
2010-09-30	52
2010-12-31	0
2011-03-31	0
2011-06-30	0
2011-09-30	0
2011-12-31	0
2012-03-31	3
2012-06-30	3
2012-09-30	18
2012-12-31	16
2013-03-31	15
2013-06-30	0
2013-09-30	0
2013-12-31	0
2014-03-31	0
2014-06-30	0
2014-09-30	0
2014-12-31	3
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	3
2018-03-31	4
2018-06-30	1
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0